diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_labpc.h')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_labpc.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/ni_labpc.h b/drivers/staging/comedi/drivers/ni_labpc.h new file mode 100644 index 000000000000..b44b0d3d02f1 --- /dev/null +++ b/drivers/staging/comedi/drivers/ni_labpc.h @@ -0,0 +1,85 @@ +/* + ni_labpc.h + + Header for ni_labpc.c and ni_labpc_cs.c + + Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#ifndef _NI_LABPC_H +#define _NI_LABPC_H + +#define EEPROM_SIZE 256 // 256 byte eeprom +#define NUM_AO_CHAN 2 // boards have two analog output channels + +enum labpc_bustype { isa_bustype, pci_bustype, pcmcia_bustype }; +enum labpc_register_layout { labpc_plus_layout, labpc_1200_layout }; +enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer, + isa_dma_transfer }; + +typedef struct labpc_board_struct { + const char *name; + int device_id; // device id for pci and pcmcia boards + int ai_speed; // maximum input speed in nanoseconds + enum labpc_bustype bustype; // ISA/PCI/etc. + enum labpc_register_layout register_layout; // 1200 has extra registers compared to pc+ + int has_ao; // has analog output true/false + const struct comedi_lrange *ai_range_table; + const int *ai_range_code; + const int *ai_range_is_unipolar; + unsigned ai_scan_up:1; // board can auto scan up in ai channels, not just down + unsigned memory_mapped_io:1; /* uses memory mapped io instead of ioports */ +} labpc_board; + +typedef struct { + struct mite_struct *mite; // for mite chip on pci-1200 + volatile unsigned long long count; /* number of data points left to be taken */ + unsigned int ao_value[NUM_AO_CHAN]; // software copy of analog output values + // software copys of bits written to command registers + volatile unsigned int command1_bits; + volatile unsigned int command2_bits; + volatile unsigned int command3_bits; + volatile unsigned int command4_bits; + volatile unsigned int command5_bits; + volatile unsigned int command6_bits; + // store last read of board status registers + volatile unsigned int status1_bits; + volatile unsigned int status2_bits; + unsigned int divisor_a0; /* value to load into board's counter a0 (conversion pacing) for timed conversions */ + unsigned int divisor_b0; /* value to load into board's counter b0 (master) for timed conversions */ + unsigned int divisor_b1; /* value to load into board's counter b1 (scan pacing) for timed conversions */ + unsigned int dma_chan; // dma channel to use + u16 *dma_buffer; // buffer ai will dma into + unsigned int dma_transfer_size; // transfer size in bytes for current transfer + enum transfer_type current_transfer; // we are using dma/fifo-half-full/etc. + unsigned int eeprom_data[EEPROM_SIZE]; // stores contents of board's eeprom + unsigned int caldac[16]; // stores settings of calibration dacs + // function pointers so we can use inb/outb or readb/writeb as appropriate + unsigned int (*read_byte) (unsigned long address); + void (*write_byte) (unsigned int byte, unsigned long address); +} labpc_private; + +int labpc_common_attach(struct comedi_device * dev, unsigned long iobase, + unsigned int irq, unsigned int dma); +int labpc_common_detach(struct comedi_device * dev); + +extern const int labpc_1200_is_unipolar[]; +extern const int labpc_1200_ai_gain_bits[]; +extern const struct comedi_lrange range_labpc_1200_ai; + +#endif /* _NI_LABPC_H */ |